ENGINEERING THERMODYNAMICS QUIZ

The efficiency of a Carnot engine depends on

Size of engine

Temperatures of source and sink

Working substance

Design of engine

TRUE ANSWER : ?
YOUR ANSWER : ?

An ideal gas as compared to a real gas at very high pressure occupies

Less volume

Same volume

More volume

Unpredictable behavior

TRUE ANSWER : ?
YOUR ANSWER : ?

Extensive property of a system is one whose value

Is dependent on the path followed and not on the state

Is not dependent on the path followed but on the state

Depends on the mass of the system like volume

Does not depend on the mass of the system, like temperature, pressure, etc.

TRUE ANSWER : ?
YOUR ANSWER : ?

When a gas is heated at constant volume

Its pressure will increase

Its temperature will increase

Neither temperature nor pressure will increase

Both temperature and pressure will increase

TRUE ANSWER : ?
YOUR ANSWER : ?

The more effective way of increasing efficiency of Carnot engine is to

Decrease higher temperature

Increase lower temperature

Decrease lower temperature

Increase higher temperature

TRUE ANSWER : ?
YOUR ANSWER : ?

Kinetic theory of gases assumes that the collisions between the molecules are

Perfectly inelastic

Partly elastic

Perfectly elastic

Partly inelastic

TRUE ANSWER : ?
YOUR ANSWER : ?

The efficiency of Ericsson cycle is __________ Carnot cycle.

Less than

Greater than

None of these

Equal to

TRUE ANSWER : ?
YOUR ANSWER : ?

When cut-off ratio is ________; the efficiency of Diesel cycle approaches to Otto cycle efficiency

2

Zero

43834

43835

TRUE ANSWER : ?
YOUR ANSWER : ?

The general gas equation is (where p = Pressure, v = Volume, m = mass, T = Absolute temperature, and R = Gas constant)

pvm = C

pv = mRT

pv = RTm

pv = (RT)m

TRUE ANSWER : ?
YOUR ANSWER : ?

First law of thermodynamics deals with

Conservation of energy

Conservation of mass

Conservation of momentum

Conservation of heat

TRUE ANSWER : ?
YOUR ANSWER : ?